condition mean min max 0 h after light 17.68795 17.0552 18.3207 4 h after light 15.24285 14.9921 15.4936 8 h after light 21.619149999999998 19.4528 23.7855 4 h after dark 28.713 28.3652 29.0608 8 h after dark 25.5503 24.9782 26.1224 12 h after dark 22.121850000000002 22.0812 22.1625